5 ESTEEMED PARTNER! NIVELCO has established and maintained a leading and respected world market position, and in the past more than 3 and a half decades has sold almost 1 million units of level instrumentation. We are proud that NIVELCO is represented on the markets of many countries of the world through its subsidiaries and distributors, and in a number of industrial segments our devices are used with satisfaction. Our company is committed to establishing long-term, trusted and successful business relationships. We know that besides getting an excellent value for your money, there are other key factors that matter to our clients such as quality, guarantee and business reliability.

This can only be provided through high performance, quality products and services. In 2010, we introduced our 3-year full warranty for our products instead of the previous 2-year warranty term. Thanks to the conscious quality policy that NIVELCO is committed to, our quality indicators have shown excellent results and positive changes since then. We are therefore pleased to announce that from 2018 onwards, instead of the present 3 years, uniquely in the industry we provide 5 years of warranty for most of the NIVELCO instruments! We are confident that our decision will further strengthen the confidence in our company and our products.

THE STORY OF A FAMILY VENTURE After training as an engineer in the “ITT Standard” telephone company, in 1939 Endre Szőllős started his own business designing and producing telephone systems for business and industry. While the World War II did not provide an easy period for Endre and his colleagues, the business grew and provided good training for his sons. Following their University courses in electrical engineering and economics respectively, Tamás and András Szőllős were able to lead the company forward, after the early death of Endre in 1969. By 1982, the production of a series of industrial controllers had led to a developing specialisation in level measurement and control: and NIVELCO was founded.

In 1989, when International trade from Hungary became straightforward, NIVELCO had a full, proven level control product range and capability, backed by well established in-house manufacturing and engineering facilities. In 1989 the NIVELCO launch of the World’s first “Compact” ultrasonic level transmitter had a major impact, offering a combined sensor / transmitter in one unit, leading the world market.

NIVELCO took the opportunity offered by these newly available export markets, and opened trading relationships with various identified distributors and sales agents. Building on existing sales links into neighbouring countries, NIVELCO also invested in their own sales organisations and offices in Austria and Poland, and then later in the Czech Republic, Romania and Russia. Our success in these ventures demonstrates that by maintaining our business principles, expertise and specialist skills, NIVELCO can compete successfully with the best suppliers to the industry, by providing: ■ Wide range of products to suit all applications ■ Investment in advanced technology expertise and high quality product development ■ High specification quality management and control systems ■ Worldwide marketing, sales and service support ■ Fast, flexible in-house production and customer order logistics ■ Company-wide IT System to provide full product design and production data ■ Fair, modest pricing, ensuring the capital for future customer support and development ■ Continuing investment in our people and their working relationships Despite that in today’s globalised world, the multinational giants – set up for mass production – can rule the market, there are many medium-size companies who specialise in satisfying customer needs, and manufacture products with high intellectual added value.

The achievements of NIVELCO demonstrate that flexible, customer-led medium-size companies can find their place in the market and maintain their independence. COMPANY PROFILE 2018 TamásSzőllős

6 COMPANY PROFILE 2018 Efficient industrial production relies on the information provided by modern high technology sensors and instrumentation. In the 1980’s the whole sensor manufacturing industry was radically changed by developments in microprocessors and electronics. NIVELCO achieved the significant market position it holds today by recognising these developments. Recognising the growth in the market demand, NIVELCO earned recognition primarily with its level transmitter, and gained a substantial global market share, based on its purposeful business policies and constant investment in technology.

Year by year NIVELCO produced every 20th ultrasonic transmitter sold in the world, every 50th vibration level switch, and every 100th radar level transmitter.

In this way NIVELCO has established and maintained a leading and respected world market position, and in the past 35 years has sold almost 1 million units of level instrumentation: NIVELCO is now one of the largest ultrasonic level transmitter producers in the world. NIVELCO’S TIMELINE 1982 NIVELCO formed 1982 NIVOSONAR – the first Ultrasonic level transmitter 1984 NIVOCONT – Vibrating rod level switch 1986 NIVOCAP – Capacitance level transmitter 1989 NIVOSONAR – Compact Ultrasonic level transmitter: A WORLD FIRST!

7 COMPANY PROFILE 2018 SALES AND SUPPORT Efficient technical sales support to cus- tomers, contractors and distributors has always formed an essential part of the NIVELCO business approach, and the application knowledge and experi- ence developed in the sales team is a major business strength. Input from the NIVELCO sales team covering the five regions in Hungary, and the NIVELCO sales companies in Poland, the Czech Republic, Romania, India and Russia, as well as that from export distributors and sales agents, is treated as a valuable resource to be shared, and to guide product planning and development.

To provide and present this experience to new sales personnel, and distributors, NIVELCO produce articles for publication, plus appli- cation notes and reference site information for presentation on the website, and in the NIVELCO Magazine published twice a year. Hands-on demonstrations are encouraged, frequent training courses in the Budapest training centre provide customers, installers and staff from sales distributors with hands-on experience. The NIVELCO showroom provides a permanent resource where equipment can be demonstrated in action. MARKETING The marketing department at the Hungarian headquarters supplies all marketing materials such as brochures, advertisements and presentations, for the subsidiary companies to show the unified NIVELCO corporate image.

The marketing team coordinates the constant updating of all information on the multilingual NIVELCO website and is also responsible for keeping up-to-date downloadable colour brochures, technical documentation, etc. The NIVELCO movie (presented on the website) was shot by our own NIVELCO crew to present the manu- facturing capability and the wide application possibilities of NIVELCO instruments. Other priority tasks for the marketing department involve participation in exhibitions and organisation of regular professional training courses for our sales partners and customers, presenting detailed knowledge and information about the NIVELCO instruments.

THE HEADQUARTERS From cramped beginnings in 1982, with 15 employees occupying 150 m2 in Budapest, NIVELCO has invested in extensive facilities capable of total control of the production requirement. In the year 2000, a further expansion to the new factory created a capacity of 10 000 m2 , giving significant space for future development: this is currently allocated to the NIVELCO Trade Center, and some associated activities. In the currently unused factory areas, the NIVELCO Trade Center provides leased space to host headquarters for other companies. NIVELCO engineering, manufacture and production is exclusively in Hungary: the other subsidiaries deal only with sales and marketing activities, plus consulting, installation and service.

The modern air-conditioned factory and excellent working conditions ensure a neat and tidy environment, and create the right conditions for producing good quality work.

PRODUCTION NIVELCO has invested heavily in the best production machinery available, with all aspects of the required production being undertaken in the factory. Here, computer-controlled CNC machining centres, as well as surface mount electronics production facilities and fume extraction, make a clean and efficient unit. The investment is driven using a global IT system for production control and logistics. In this way NIVELCO maintains total control over the build, and has achieved quality management system approval to ISO9001. All production output is tested using automatic systems, heat-soaked and cycled where needed in special test chambers.

8 STATISTICS The NIVELCO story over the last more than 35 years has been one of consistent growth – growth in factory production output and sales value, growth in employees and in our business resources. Achieving a 7-fold sales growth from an employee base growing 3-fold, productivity has also more than doubled over the period, assisted by some EU subsidies for IT and technological development. As a consequence of effective and purposeful management, the capital employed within the NIVELCO Group has gradually grown, and reached more than 12 million Euros in 2016. Europe, including Hungary, presents the major established market, with 73% of sales.

In terms of the product ranges, the sales split for 2016 shows that while ultrasonics still maintain a 30% share of the total business, further new products have established a solid market presence, and already radar systems have achieved significant sales. RESEARCH AND DEVELOPMENT The main profile of the Research and Devel- opment Department is the development of all manufactured products and technologies including mechanics, hardware and soft- ware. More importantly, the Development Team is responsible for designing new prod- ucts in accordance with customer needs, and driving these into production.

Besides the new developments there is also continuous modernisation and revamping of the existing well-known products as well as supporting and optimising the product line to achieve better and better product quality. Creating a wide product portfolio – wider than the competitors – to be able to provide suitable solutions to special market needs, it is necessary to undergo many official design approval procedures, such as are needed with ATEX, PED, or shipping approvals, or with measurement accuracy and perfor- mance certi-fications like OIML, GOST, or SIL. In the course of these procedures, close co-operation has been established between NIVELCO and the international classification institutions (BKI, TÜV, DNV GL, BV, OMH, etc).

Our policy and our essential goal is to design and launch high technology, carefully tested products into the market, products which can be easily manufactured, that can have a fast delivery time, operate according to the customers needs, and can be sold at a competitive price. Having extensive practical experience and professional knowledge, the engineering team at NIVELCO has established the knowledge, structure and procedures to achieve this goal. NIVELCO maintains close links with academia and suppliers to utilise the most advanced developments available. Strong working links have been established with the Budapest University of Technology and Economics and with the Óbuda University, and with other academic institutions, which has led to the recruitment of many well trained engineers.

EXPORT MARKETING Doing some business with East Bloc countries was what we had as export in the 80’s, when NIVELCO was formed: the East Bloc was still its old self and markets were closed. Nevertheless NIVELCO was an export driven company, and almost a decade later, in 1990, we were able to show our muscles to the world for the first time. This was the beginning of NIVELCO’s export success. Twenty years later, exporting more than 80% of its production, NIVELCO has now proved itself to be an export oriented company. Covering over 65 countries through our own subsidiary companies and through distributors, our products reach almost all world markets.

To aid distributors and our own subsidiaries, regular training programmes are organised in order for their staff to keep up with technology driving NIVELCO’s high tech instruments. Sales meetings held annually provide a vehicle for information transfer and for an exchange of ideas between people from all over the world. When our dealers participate in international exhibitions, they are supported with operational models, exhibition accessories and experts. With the success seen with the NIVELCO non-European subsidiaries (like USA, Russia and India), there is the strong intention to open further similar subsidiaries in the near future.

REFERENCES IN ALL INDUSTRIES AND ALMOST EVERYWHERE IN THE WORLD! This phrase best describes the wide application possibilities of NIVELCO instruments. Many references to NIVELCO installations and applications are quoted on the website – tank contents measurement in food, pharmaceuticals and chemicals; environment protection applications; sump control in wastewater systems, and flow monitoring in effluent channels are just some of those illustrated. ALMOST NO MATTER WHAT IS TO BE MEASURED! No matter what level you need to measure – whether it is sewage in the USA, animal feed pellets in Hungary, palm oil in Malaysia, cement, sand and building materials in Austria – trust NIVELCO instruments to do the job.

9 LEVEL TRANSMITTERS Since its foundation NIVELCO has focused on the manufacture of industrial level measurement products. Our focus has not changed, demonstrated by our wide level transmitter portfolio employing many different types of level measurement methods. Our ultrasonic level transmitter selection is definitely the widest on the market offering integrated, compact, 2- or 4-wire transmitters for liquids or solids with remarkable number of optional choices. The K-band PiloTREK non-contact level transmitters are regarded the most progressive non-contact level transmitters of the industrial process automation field.

The high-precision NIVOTRACK magnetostrictive level transmitters with 0.1 mm resolution are applicable for custody transfer liquid level measurements. The NIVOFLIP bypass liquid level indicators are suitable for high temperature applications and high pressure processes. The NIVOCAP capacitance level transmitters provides highly reliable measurement thanks to the well-know and accepted capacitive principle. Most of our transmitters are available in PFA coated version for aggressive mediums, and all transmitter families have explosion-proof models applicable in hazardous environments.

Their accuracies are excellent and their short and narrow antennas make their installation simple and low cost. NIVELCO’s K-band radar featuring ±3 mm accuracy and short dead band excels with its versatile housing concept lining up plastic, aluminium and stainless steel versions. Its antenna range incorporates stainless steel horn or parabolic antenna and enclosed plastic tube varieties. The enclosed antenna versions can be replaced without removing the antenna enclosure from the process. Local programming of the PiloTREK is aided by a plug-in display module. If on-site reading is not desired this module may not be required thus reducing cost of ownership.

The signal processing algorithm of the PiloTREK is based on NIVELCO’s 30 years of experience with non- contact level measurement making it an excellent choice for applications simple and challenging alike.

OPERATION INDUSTRY SEGMENTS ■ ■ Water, wastewater ■ ■ Power generation ■ ■ Food and beverage ■ ■ Pharmaceutical ■ ■ Chemical APPLICATION ■ ■ Liquids and slurries in general The operation of the non-contact microwave level transmitters is based on the measurement of the time of flight of the microwave burst. The propagation speed of microwave impulses is practically the same in air, gases and in vacuum, independently from the process temperature and pressure, so the measured distance is not affected by the physical parameters of medium to be measured. The level transmitter induces microwave impulses a few nanosecond long in the antenna and a part of the energy of the emitted signals is bounced (reflected) back from the measurement surface depending on the measured media.

The time of flight of the reflected signal is measured and processed by the electronics, and then this is converted to distance, level or volume proportional data. The measurability of the level of a specific medium is depending on the signal strength of the reflected microwave impulses. The signal strength of the reflected impulses is considerably depending on the distance to be measured, the relative dielectric constant of the measured medium and the turbulence of the surface. The relative dielectric constant (εr) of the medium should be more than 1.4 in case of parabolic design, or it should be more than 1.9 with horn antenna types.

The Echo Map feature helps to detect false reflections and aids the optimization of the measurement configuration. To avoid unwanted multiple reflections the instrument should not be mounted in the middle of the tank or in the vicinity of the filling place or the outlet of the tank. The ideal position for the PiloTREK is on the r = (0.3 – 0.5) R in case of cylindrical tank. The distance between the sensor and the tank wall should be at least 200 mm. The mounting placement should be as far as possible from the disturbing objects inside the tank and from the sources of disturbing effects such as waving, vortex or strong vibrations.

The antenna face should be parallel to the medium surface within ±2 – 3°. To avoid overheating the instrument should be protected against direct sunshine. PiloTREK TRANSMITTERS IN SYSTEM WITH A PC The instruments with HART® output can be connected to a PC using a UNICOMM HART-USB modem. Max. 15 normal (non-Ex) instruments can be connected to a single HART® loop. All measured values can be visualized and/or the instruments can be remote programmed via digital HART® communication. Applicable software: EView2 configuration software or NIVISION process visualization software. PiloTREK TRANSMITTERS IN HART MULTIDROP LOOP The MultiCONT can handle digital data coming from HART® capable NIVELCO transmitters (e.g.

level, temperature, pressure, pH, dissolved oxygen, etc.). The digital (HART® ) information is processed, displayed and transmitted via RS485 communication line to a PC when needed. Remote programming of the transmitters is also possible. Visualisation on PC can be accomplished with NIVISION process visualisation software.

MicroTREK The MicroTREK Guided Wave Radar level transmitter is designed for continuous level measuring of conductive or non-conductive liquids, pulps and solids. MicroTREK level gauge operates based on the well-known TDR (Time Domain Reflectometry) principle. Micropulses are sent along a probe guide at the speed of light. As soon as the impulse reaches the surface of the medium, it is reflected back to the electronic module. Level distance is directly proportional to the flight time of the impulse. The reflected signal is dependent on the dielectric constant of the material, the feasibility of the measurement is er ≥ 1.4.

The TDR technology is unaffected by the properties of the medium as well as that of the space above it. Measurement is also unaffected by the change in the physical properties of the materials such as temperature, pressure, dielectric constant. GENERAL DESCRIPTION APPLICATIONS Mono cable / Mono rod Mono segmented rod Twin cable Twin rod Coaxial Pipe Cement, limestone, fly ash, alumina, carbon black All high-viscosity liquids Mineral powders Clean and contaminated liquids For stilling wells (calibration required) Aggressive mediums with plastic coated probes Slightly conductive foams High temperature applications Bypass applications Tank parks with solvents, oil or fuels Water storage tanks Plastic granules For products with low dielectric constant (εr > 1.8) For any liquids, light granules For narrow tanks Where minimum dead-zone is needed Mounting close to tank wall is possible Plastic granule vessels Coated tanks Clean and contaminated liquids Fine powders Where minimum dead-zone is needed For narrow tanks For mediums with low dielectric constant and slightly moving products Small vessels or tanks with max.

The probe of the instrument and the reference probe (which can be either the metal wall of the tank or installed separately) operate as opposing plates of a capacitor. Between the plates of this capacitor the air is replaced by a medium with greater dielectric constant than the air during filling the tank, therefore the capacitance is changing directly proportional to the level. The incorporated electronic circuitry measures the capacitance difference and converts it to an output signal proportional to level. MEASUREMENT ARRANGEMENTS weight Rod probe Metal tank and non-conductive medium. The rod probe is insulated partly at the process connection.

The piezoresistive sensor measures the hydrostatic pressure and it compares the water head with the actual atmospheric pressure. The sensor is protected by a stainless steel flush diaphragm which transfers the pressure value to the piezoresistive sensor through silicon oil. Intelligent electronics provides on-site programming with SAP-200 plug-in display or remote programming with HART® communication. Intrinsically safe (Ex ia approved) models are available for use in hazardous environments. NIVOPRESS D hydrostatic gauge pressure transmitters are suitable for level- and pressure measurement tasks in tanks, vessels and pipes especially in food and beverages industry (for example milk and any other food dollops) applications.

The flat surface of the diaphragm avoids the risk of material build up and the maximum medium temperature of 125 °C allows proper (CIP) cleaning required by the regular cleaning processes of the food industry and similar hygienic applications.

35 LEVEL TRANSMITTERS HYDROSTATIC LEVEL AND PRESSURE TR ANSMITTERS NIVOPRESS D NIVOPRESS D IN SYSTEM WITH A PC The MultiCONT can handle a max.

of 15 normal HART® or max 4 Ex-proof HART® capable NIVELCO transmitters. The digital (HART® ) information is processed, displayed and if needed it can be transmitted via RS485 communication line to a PC. Remote programming of the transmitters is also possible. Visualisation on PC can be accomplished withNIVISION process visualisation software. NIVOPRESS D IN HART MULTIDROP LOOP TheinstrumentswithHART® outputcanbeconnectedtoaPCusinganUNICOMMHART® - USB modem. Max. 15 normal instruments can be connected to a single HART loop. All measured values can be visualized and/or the instruments can be remote programmed via digital HART® communication.

Thepressuresensoratthebottomoftheprobemeasuresthesumofthehydrostaticpressur e(Phydr)oftheliquidcolumnaboveitandtheatmosphericpressure(Patm).Theatmosphe ricpressure is led to the sensor through a breathing capillary which is equipped with a moisture filter that prevents the moisture reaching and damaging the electronics. This enables the atmospheric pressure to be subtracted from the measured pressure to get the hydrostatic pressure which is proportional to the height of the liquid column (h). The electronics converts the sensor’s signal into an output signal. If temperature measurement (of the liquid) is needed beside the level measurement a combined (level + temperature) transmitter should be used.

The installation and wiring of the transmitter is helped by the wide variety of accessories. A sewage adapter working on the principle of the diving bell can be snapped into the place of the protecting cap to avoid the direct contact between the sensor and the measured contaminated liquid. An extra mechanical protection is built in the NZ type transmitters in the form of a mechanical filter. The N-500 types can be used in hazardous environments. The NZ screw-in type transmitters are recommended for applications where there is a risk of flooding. The NB/NG plastic housing types are designed for those applications where the aggressive medium (e.g.

saline solutions or seawater) could cause galvanic corrosion of the stainless steel body.

Its high precision renders the NIVOTRACK suitable for custody transfer measurement of liquids such as fuels, solvents, alcohol derivatives etc. Units with flexible tube do not only make this accurate measurement for higher tanks possible, but offer a more convenient way for shipment and installation. Plastic coated versions of the NIVOTRACK substantially expand the field of application by a wide range of aggressive materials. Integrating the transmitter into a process control system is easy thanks to the intelligent signal processing and communication software as well as the wide of range of accessories offered.

Need of IEC is to be specified with order. The material of the float (PVDF or PP) should be given in text of the order. The standard float material is PVDF. Available on request (should be given in the text of the order) Side viewed "B" head position model Process connection MGH-105-2M-300-00 Sliding sleeve: 1" BSP MGL-105-2M-300-00 Sliding sleeve: 1" NPT M F T – 3 2 1 – 2 PP flange drilled like DN80, PN16 + 1" BSP sliding sleeve in should be ordered M F T – 3 3 1 – 2 PP flange drilled like DN100, PN16 + 1" BSP sliding sleeve should be ordered Accessories to order (see relevant page for details)

The high temperature types are applicable up to 250 ˚C process temperature. The NIVOFLIP can be equipped with optional limit switches or with NIVELCO’s NIVOTRACK high-precision magneto- strictive level transmitter if level transmission is needed.

OPERATION The welded bypass chamber that is the body of the indicator and the tank form one pressurized system. Mounted on suitable connection flanges located on the side of the tank the liquid level in the bypass tube and the tank is equal. A float in the bypass tube incorporatingapolarizedmagnettrackstheleveloftheliquid.Thebi-colouredmagnet ic flapsmountedonthetubecomposingabarareservingasvisualindicatorsbychanging their colour as the float passes. The rotated flaps represent the actual level. The lower 100 mm of the bottom section of the indicating bar has different colour providing for an optical error signal in case the liquid level drops below the lower connection point of the instrument.

The NIVOFLIP bypass liquid level indicator can be equipped with MAK-100- external level switches and this way it can provide limit level indication. In case of using MAK-100 level switch the minimal medium density should be 0.1 kg/dm3 more than the specified. When the provided accuracy of the magnetic flaps is not enough, the high-precision NIVOTRACK M L-500/700 magnetostrictive level transmitters are recommended to use. Equipped with the OIML R85 approved NIVOTRACK the measurement system is applicable for custody transfer measure- ments. The rigid probe magnetostrictive transmitter without float and process con- nection can be mounted externally by clamps to the bypass chamber.

All optional units are operated via magnetic coupling, there is no direct contact with the measured medium.

51 LEVEL TRANSMITTERS BYPASS LIQUID LEVEL INDICATORS NIVOFLIP NIVOTRACK MOUNTED ON NIVOFLIP High temperature type Standard The probe length of the magnetostrictive level transmitter should be 300 / 400 mm longer then the center to center distance of the bypass tube in accordance to the float type. The level transmitter is place onto the bypass tube that the top of the magnetostrictive probe is in the same height with the top of the bypass tube. The end of the probe should extend the inverse polarized error indication flaps with 20 / 40 mm. The supplied aluminium spacers are fixed with hex socket set screws and they are mounted to the bypass tube with pipe clamps.

In case of the high temperature type there is a ceramic fiber insulation blanket between the magnetostrictive probe and the bypass tube.

54 LEVEL TRANSMITTERS ULTR ASONIC INTEGR ATED LEVEL TR ANSMITTERS FOR LIQUIDS EasyTREK GENERAL DESCRIPTION The newest generation EasyTREK SP-500 series level transmitters are based on NIVELCO’s 35 years of experience with ultrasonic level measurement. The IP68 rated units have their transducer and processing electronics incorporated in one single housing. The new EasyTREK transmitters utilize HART® 7 communication so they can be used in multidrop systems connected to MultiCONT process controller/display, or to a PC with the help of the UNICOMM HART® -USB modem or similar. The transmitters can be remotely programmed also with Handheld Field Communicator, and can be connected wirelessly to a PC with the SAT-504 Bluetooth® HART® modem.

55 LEVEL TRANSMITTERS ULTR ASONIC INTEGR ATED LEVEL TR ANSMITTERS FOR LIQUIDS EasyTREK EASYTREK IN SYSTEM WITH A PC CONNECTED VIA BLUETOOTH® The instruments with HART® output can be connected to a PC via Bluetooth® wireless connection using a UNICOMM HART® -USB-Bluetooth® modem (SAT-504). We can provide power supply for the system with a USB power bank connected to the UNICOMM modem. EASYTREK TRANSMITTERS IN SYSTEM WITH A PC The instruments with HART® output can be connected to a PC using a UNICOMM SAK-305 HART® -USB modem. All measured values of the EasyTREK level transmitters can be visualized and/or the instruments can be remotely programmed via digital HART® communication.

EASYTREK LEVEL TRANSMITTERS IN HART MULTIDROP LOOP The MultiCONT multichannel process controller processes and displays measurement data supplied by NIVELCO’s HART® equipped transmitters connected to a Multidrop loop. The transmitters (also mixed models) can be connected and remote programming can be also performed through the MultiCONT. Re-transmission of the data is possible via RS485 communication line to a PC or PLC when needed. The visualisation of the data can be done by NIVISION process visualization software. With the help of MultiCONT different useful functions can be achieved such as configuring and optimizing the measurement, or displaying the special echo map of the process environment.

61 LEVEL TRANSMITTERS The EchoTREK high performance level transmitters are based on NIVELCO’s 30 years of experience with ultrasonic level measurement. Whether for liquid level measurement in sumps or tanks,fortankcontentsmeasurement,oropenchannelflowmeasurement,EchoTREKtrans mittersprovidetheanswer.Installedonthetankroof,orabovetheliquidsurfacetobem easured, the transmitters give analogue output proportional to liquid level or transmit HART® digital data. The EchoTREK is an intelligent compact ultrasonic level transmitter with 4 – 20 mA output offering HART® protocol as option. Local reading is ensured by a plug-in display which can be removed if displaying is not needed.

Four keys provide for programming, both display and keys are located under a removable cover. The unit is tank-top mountable only. The level transmitters can be used in multi-drop systems connected to NIVELCO's MultiCONT process controller/display, or to a PC with the help of the UNICOMM HART® -USB/RS485 modem or similar. EchoTREK are available with measurement ranges up to 25 m providing wide application possibilities. The ultrasonic level transmitters are using NIVELCO's established SenSonic range transducers with a full beam angle of 5 to 7 degrees connected to the intelligent electronics featuring the QUEST+ advanced signal processing algorithm.

The echoes bounced back from the surface of the medium to be measured reach the sensor surface after the time of flight of the ultrasonic impulse. The time of flight of the reflected signal is measured and processed by the electronics, and then this is converted to distance, level, volume or flow proportional data with the help of the customizable tank dimensions or the pre-programmed flume / weir parameters. The intelligent QUEST+ process adaptive signal processing software system ensures that the electronics identifies and validates the liquid surface signal, giving reliable level monitoring.

measuring range (1) 15 m 30 m 60 m Min. measuring range (1) 0.6 m 1 m (1) Under optimum conditions and stabilized transducer temperature Coning or arching is a general feature of solid material storage is caused by the filling / emptying process. Optimising the aiming by the SAA-102 joystick (part of the EchoTREK units) is recommended in these situations. The joystick aiming device offers a suitable solution to minimize most of the unfavourable effects of coning or arching. The optimal tilting position can be adjusted during operation and recommended to be checked at multiple levels during the filling / emptying process.

As a general rule, best result is obtained by the transducer aimed towards the centre of the tank bottom.

79 LEVEL SWITCHES LEVEL SWITCHES The most frequent level instrumentation task is level control and limit level switching whether if the measurement medium is liquid or solid. This is the reason why NIVELCO focuses on level switches in addition to the level transmitters. NIVELCO has designed and manufactures instruments that offer reliable level control and limit level switching solutions for most media from potable water to sewage, aggressive alkalis and acids, or free- flowing, powdered, bulk or granular solids.

Thanks to this very wide level switch selection we are able to provide suitable instruments for most level instrumentation applications.

The double-chambered float is made of injection moulded tough polypropylene that ensures good waterproof protection. The contacting microswitch is incorporated in the float.

The cable of the NIVOFLOAT level switch is fed through a waterproof sealed entry into the monolithic structure of the injection moulded plastic housing. The cable of the level switch is a flexible insulated copper cable with 3x1 mm2 cross section and PVC or Neoprene outer insulation. Different control tasks such as liquid level monitoring and pump control can be accomplished with NIVOFLOAT. GENERAL DESCRIPTION MAIN FEATURES ■ ■ Double-chambered float ■ ■ Switching differential is adjustable by counterweight ■ ■ Maximum 20 m cable length ■ ■ Medium temperature max +50 °C ■ ■ Process pressure max.

85 LEVEL SWITCHES APPLICATIONS ■ ■ For conductive liquids with min. 10 μS/cm conductivity ■ ■ For empting / filling control or level switch tasks ■ ■ Fail-safe indication and pump control ■ ■ Water inrush indicator CONDUCTIVE LEVEL SWITCHES NIVOCONT K GENERAL DESCRIPTION VERSIONS Level switches, based on the conductivity principle, can be applied to liquids with conductivity higher than 10 μS/cm. For detecting the level, probes are immersed into the tank. These probes (and the tank wall if conductive) serve as contacts of an electric circuit. Probes can be of single or multiple rod versions.

A maximum of 4 probe rods can fit in the multiple probe socket with an additional reference probe if tank wall is not conductive. The probe length should be in accordance with the level to be detected. When the liquid level reaches the probe, it will create a short-circuit and the output relay will be activated. The device senses the conductivity difference between the probes and the reference probe. The KLP separators should be used at every 0.5 m to provide suitable distance between the probes.

250 °C medium temperature ■ ■ Flame-proof version ■ ■ IP65 / IP68 protection GENERAL DESCRIPTION TYPE SELECTION NIVOMAG MK-200 series magnetic float level switches are used for point level detection and level control of liquids in all types of vessels. Operation principle: the permanent magnet of the float activates the output microswitch by a non-contact coupling system.

The great variety of both the top and side mounted versions makes it easy to install the switch in any tank at any location. For the simplest level switching you can select models with fixed hysteresis, while for level control application we offer NIVOMAG switches with adjustable hysteresis. Models with rubber or silicon sleeves can be applied for contaminated liquids. You can fit the NIVOMAG switch with an MMK type tester, to check the switching function even when the liquid levels aren’t changing. To assist in the selection of the correct model the following tables and diagrams are provided.

When selecting a model due consideration must be given to liquid density, mounting position and process connection and to determine if there is a need for adjustable or fixed hysteresis or a rubber sleeve.

The device consists of a probe tube, a float incorporating a magnet and a housing containing the connection terminals. A maximum of 5 switches can be incorporated in the probe. A sliding sleeve on the top of the probe provides for a simultaneous ±25 mm adjustment possibility of the positioning of the switches. The wetted parts of the level switch are made of stainless steel. The plastic coated versions are suitable for level detecting of aggressive liquids, and the ATEX certified versions are applicable for level switching of explosive materials. Floats and process connections can be selected according to the measured medium and the application.

The mini type NIVOPOINT magnetic float level switches are suitable for maximum level indication in small tanks. The small size and easy mounting of the switch allows maximum level detection in appliances or tanks using process connections made for different other purposes. Class T6 T5 T4 T3 Max. ambient temp. from -40 °C +65 °C +80 °C +95 °C Max. medium temp. from -40 °C +80 °C +95 °C +130 °C +150 °C TEMPERATURE DATA FOR Ex VERSIONS NIVOPOINT magnetic float level switches work on the basis of the interaction of the built-in mag- net in the float and the reed switches in the probe. The float of NIVOPOINT level switch devices moves alongside the probe tube tracking the level of the measured liquid and activating the reed switches.

When the float moves ahead the reed switches, it changes the default state (NO or NC) of the reed switches, which stay in self-holding state with the help of opposite polarized magnets next to the reed switches. When the liquid level decreases, the float moves ahead the reed switches again, breaks off the self-holding state and restores the previous state of the reed switches. The mini type NIVOPOINT level switches do not contain biasing magnets. By tracking the level, the magnetic float activates the reed switch in the probe. The reed switch opens or closes according to the position of the magnetic float.

The default state is meant with bottom positioned float, the normally opened or closed state of the reed switch can be changed by the inversion of the float. OPERATION MZ without biasing magnet MR with biasing magnet C 1 S N S N N S S N 2 N S NO NO NC MZS-100 Mini type MPo-100 Plastic coated version MRo-100 Standard version MZC-300

Units with parallel vibrating fork are suitable for liquids, units with non parallel vibrating fork are suitable for solids. Mounted on pipes, silos, tanks or hopper bins it can control filling / emptying, also can generate fail-safe alarms providing overfill- or dry run protection. The operation principle is based on that the electronic circuit excites a vibration in the fork probe. When the medium reaches and covers the fork, its vibration changes or stops. The fork will start vibrating again as the medium sets it free. The electronics senses the change of vibration and gives output signal after a selected delay.

The plastic coated version is recommended to use for aggressive mediums, the highly polished version is recommended to use for abrasive mediums. The PNP/NPN transistor output versions can be connected directly to PLC, or relay unit. NIVOSWITCH vibrating forks are able to solve switching tasks of high-current loads with the help of UNICONT PKK switching amplifiers. UNICONT PKK-312-8 Ex is a recommended intrinsically safe switching unit designed for Ex rated vibrating forks.

The NIVOCONT R series of vibrating rod level switches are robust instruments designed for low and high level indication of granules and powders with a minimum of 0.05 kg/dm3 density. Mounted on tanks, silos or hopper bins it can control filling / emptying, or give fail-safe alarm signals. The highly polished version is recommended to use for abrasive mediums. The operation principle is based on that the electronic circuit excites a vibration in the rod probe. When the medium reaches and covers the rod, its vibration stops, when the medium leaves the rod it returns to vibrate freely. The electronics senses the change of vibration and gives output signal after a selected delay.

121 LEVEL SWITCHES ROTARY PADDLE LEVEL SWITCHES NIVOROTA GENERAL DESCRIPTION The new NIVOROTA rotary paddle level switch series of well-known NIVELCO design can be used for detecting the level of lumpy or powdery materials and granules. Mounted to tanks, silos and hoppers it can monitor and control level, filling and emptying of stored materials such as stone, fly ash, sand, coal, feed, beet slice, etc. A small power electric motor drives the paddle which rotates freely in the absence of the material. When the paddle is immersed by the material reaching it, the motor will be switched off the same time triggering the output contact switch.

When the material level drops the paddle runs free again, the motor is reactivated and the switch returns to its original state. The new series NIVOROTA E-700 & E-800 rotary paddle level switches provide all the advantageous features of the previous series in one unit. Dust Ex versions are available for use in hazardous environments. MAIN FEATURES TYPE SELECTION APPLICATIONS ■ ■ Food industry: sunflower, sunflower cod, coffee and, cacao powder, flour, sugar, etc.

Number of vanes: Specific gravity and particle size of the material provides orientation for the number of vanes. Most commonly used is the stainless steel, single vane paddle. This paddle can be passed through the respective threaded connection. For lighter materials the use of 3-vane paddle is recommended.

Flexible coupling: Use if the shaft of the instrument has to be protected against falling materials. (rocks, larger lumpy materials) EK-700 1-vane paddle with flexible coupling EK-700 3-vane paddle EH-700 High temperature type, rod extended version

127 LEVEL SWITCHES RF-CAPACITANCE LEVEL SWITCHES NIVOCAP CK GENERAL DESCRIPTION The NIVOCAP CK new generation capacitance level switches operate as capacitance meters in the RF (radio-frequency) range providing great immunity to build-up. NIVOCAP CK-100 is an excellent choice for those adhering, sticky substances where the rival vibrating or the other contact measurement technologies are not suited. The mechanical construction consists of a stainless steel probe and a reference probe between two insulations. The intelligent microcontroller based electronics of the NIVOCAP CK evaluates continuously the voltage level proportional to the capacitance difference between the two probes and the housing.

This way it provides more stabile measurement compared to the analogue capacitance switches. The units are available only with paint coated aluminium housing, because one reference point of the measurement is the housing itself. An insulated section of the probe called the guard-ring allows that the material build-up on the probe can be ignored preventing false switching. The maximum probe length of the NIVOCAP CK series is 3 meter for extended rod probes and the cable extended versions available up to 10 meter probe length.

The high temperature and the Dust-Ex approved models are suitable for using in harsh environments so they can be ideal choice for power generation applications. OPERATION, SET-UP During the operation the electronics evaluates continuously the capacitance difference of the connected measurement probe. Until the probe is material-free, so the measured medium doesn’t reach the probe, the capacitance of the measuring and the reference probe is constant compared to the housing. When the medium reaches the probe the initial capacitance value will increase.

The intelligent electronic of the device measures this capacitance change compared to a reference value recorded by the user with the calibration procedure.

For this reason after installing the instrument an empty tank calibration should be performed in which the unit “learns” the basic capacitance of its environment and then this value will be considered as the initial reference capacitance value. The units can be calibrated by an external magnet without removing the housing cover since in Dust-Ex environment the housing cover is not allowed to remove when the unit is energized, but the unit needs to be energized for performing the calibration. The sensitivity of the unit can be selected by a push button from 4 ranges and further fine tuning can be done with a potentiometer within the selected range.

The calibration starts by pressing the CAL button or contacting the external magnet to the marked point on the housing for 5 seconds. If the unit is installed in hazardous (Dust Ex) environment where the housing cover is not allowed to remove when the unit is energized, the calibration can be done without removing the housing cover by a magnet. Thesuppliedpermanentmagneticscrewallowsperformingthecalibrationprocedurethr oughthealuminium housing. This case the status LED will blink blue during the calibration. All the other configuration settings (Sensitivity range selection, Sensitivity fine adjustment, Delay adjustment, Fail-safe operation mode selection and switching the Magnetic Calibration switch to ON state) should be carried out outside the hazardous environment (e.g.

in the control room) before mounting the instrument. The calibration can be performed multiple times.

Analysis of fluids and reliable control over the feeding of various chemicals is especially crucial in the water and wastewater, pharmaceutical, chemical, food and beverage, power industries. NIVELCO’s AnaCONT analytical range provides HART® -capable transmitters for pH, ORP, dissolved oxygen and conductivity measurement. The AnaCONT LEP pH transmitters are able to cover the whole 0 – 14 pH scale.

135 ANALYTICS pH and ORP TR ANSMITTERSAnaCONT The AnaCONT instruments are designed to measure pH and redox potential values of liquids and aqueous solutions. pH measurement:Continuous measurement of acidity (pH7 ) liquids can be performed by the help of AnaCONT transmitters. The necessary feeding of chemicals and other technological functions can be controlled by the processed measured values. The potential difference between the submerged measuring and reference probe generates a voltage proportional to the concentration of the hydrogen ion in the measured fluid.

This voltage is evaluated by the signal processing electronic module of the instrument. Based on the signals of the submerged probe and the temperature sensor the smart signal processing electronic module calculates a pH value normalized to 25°C and generates a proportional output signal. The long term stability and accuracy of the measurement requires a periodic calibration of the sensors using the standard buffer solutions. Redox potential (ORP) measurement: Similarly to the pH measurement, the measurement of the redox potential is based on the potential difference between measuring and reference probes.

Oxidation or reduction occurs on the platinum surface of the measuring probe. Redox potential is a parameter that indicates the sum of oxidants and reducers in the measured medium. The output signals of the probes are processed by the electronic unit and it converts them into a proportional output signal. In order to get the desired medium parameters the reduction of liquids or feeding of suitable oxidant is executed based on the formerly processed values.

AnaCONT MOUNTING VERSIONS The constructions of the sensors on the compact and integrated versions are identical, so all accessories are applicable for both types. The applications of the special accessories make the optimal installation of the transmitters into any process easier.

By using extension pipes or extension cables the remote mount versions allow the mounting of the electronics and the electrode part at any distance from each other. SENSOR PROTECTION TUBE LAP– 20 The protection tube can be screwed onto the probe socket it protects the probe from the mechanical impacts.

142 ANALYTICS DISSOLVED OXYGEN TR ANSMITTERSAnaCONT SAP-300 graphic display The dissolved oxygen (DO) measurement gives the quantity of dissolved oxygen gas in the liquid, in ppm or mg/l values. The sensor with oxygen-permeable membrane immersed in the liquid provides an electronic signal proportional to the oxygen concentration. The intelligent electronics calculates and transmits the DO value normalized to 25°C on the basis of the output current of the DO sensor and the potential of the temperature sensor immersed in the medium.

144 ANALYTICS DISSOLVED OXYGEN TR ANSMITTERS AnaCONT MOUNTING VERSIONS The constructions of the sensors on the compact and integrated versions are identical, so all accessories are applicable for both types. The applications of the special accessories make the optimal installation of the transmitters into any process easier. By using extension pipes or extension cables the remote mount versions allow the mounting of the electronics and the sensor part at any distance from each other. SEPARATED COMPACT TRANSMITTER Probe housing +cable extension Suspended Probe housing +pipe extension +sliding sleeve with flange Suspended Probe housing +cable extension +pipe extension +console mounting bracket Suspended Probe housing +cable extension +pipe extension Signal processing Compact transmitter +pipe extension +sliding sleeve with flange COMPACT TRANSMITTER Compact transmitter +pipe extension Compact transmitter +pipe extension +console mounting bracket As per As per As per As per order code As per order code As per order code DN80 DN80 order code order code order code

They are suitable for measuring clean, non-crystallisable liquids. The design of the transmitter, the wide temperature range and various mounting positions make possible the use in diverse industrial applications. Two probes are immersed into the measured liquid. The distance between the probes and their surface define the cell constant (K) of the instrument. The cell constant defines the measuring range and thus the application area.

The NIVOSONAR GPA enables flow measurements on gravitational sewers, brook channels, irrigation channels or any other open channel with the help of a PARSHALL flume. GENERAL DESCRIPTION OPEN CHANNEL FLOW MEASUREMENT page 153

152 FLOW MEASUREMENT APPLICATIONS

153 FLOW MEASUREMENT OPEN CHANNEL FLOW MEASUREMENT NIVOSONAR The NIVOSONAR GPA Parshall flume with EasyTREK integrated ultrasonic transmitter and MultiCONT process controller is able to create a complete flow-measurement system. The measuring flume is easy to install in new or existing channel structures.

The EasyTREK integrated ultrasonic transmitter and the MultiCONT should be separately ordered. The PARSHALL flume is a rigid structure, manufactured out of polypropylene with narrow tolerances to ensure high accuracy of metering, therefore during transport and installation great care should be taken to prevent the flume from getting deformed.

With the PARSHALL flume applied as a reducing element, the stagnation pressure causes the liquid level to rise. This change in level is in proportion with the velocity of the liquid and the flow rate. EasyTREK ultrasonic level transmitter measures the change in level and transmits measurement data via HART communication to the MultiCONT multichannel process controller. EasyTREK transmitters can be remote programmed via HART by UNICOMM HART-USB/RS485 modem or MultiCONT and data logging can be also realized besides displaying or transmitting measurement data on RS 485 line into PC.

Monitoringofthetotalvolumeofthesiloisneededtoprovideinformationonaccidental qualitylossorappearanceofgermsorfungus.Eventualtemperatureincreases will alert the operator to perform operation or recycling the medium. Temperature measurement is done by electronic temperature sensors placed at equal distances in a plastic coated stainless steel flexible tube. Each sensor sends the actual measured temperature of its environment to the transmitter head. The 2-wire loop-operated transmitter head communicates through HART protocol with control room devices such as a MultiCONT or a PC, for further processing or datalogging.

A salient advantage of the MultiCONT based system is that, if level measurement is required the system can be extended with a level transmitter. The advantage of using a multifunction system is that a new transmitter can easily be inserted into the existing loop, using the existing HART communication. GENERAL DESCRIPTION ■ ■ 2-wire multipoint temperature transmitter ■ ■ Communicates with HART® ■ ■ Max. 30 m probe length ■ ■ Max. 15 sensors ■ ■ Max 35 kN tensile force ■ ■ Replaceable sensors ■ ■ Digitally addressed sensors ■ ■ -30 °C … +125 °C medium temp. ■ ■ IP67 protection ■ ■ Ex versions MAIN FEATURES APPLICATIONS ■ ■ For normal and hazardous materials ■ ■ Temperature measurement of powdered, granular or free flowing solids ■ ■ For transmitting temperature data from faraway locations ■ ■ Grain industry ■ ■ Feed industry ■ ■ Food industry SYSTEM SET-UP VARIATIONS Depending on the required processing the system set up can be the following: 1. Information transmitted by the cable via HART® communication are received by MultiCONT and re-transmitted to a PC via RS485 protocol.

Relays of MultiCONT can serve alarm functions. 2. Same as above but a MultiCONT with Datalogger function stores the incoming data in an SD card. The stored data can be processed or archived in any PC. 3. HART® signals are directly transferred to a PC using an UNICOMM HART® -USB modem. Data processing can be done by NIVELCO’s NIVISION software. If more than 15 transmitters are needed they have to be redistributed between multiple MultiCONT or HART® modem units.

A MULTIFUNCTION SYSTEM If level measurement is needed the appropriate level transmitter (for example: MicroTREK or EchoTREK) can be connected to the same HART® loop. Because of the limitations of the HART standard, the total number of temperature and level transmitters should not exceed 15. Variants of the combined system set up are the same as described earlier. CERTIFICATIONS ■ ■ ATEX approved (Ex ia) ■ ■ ATEX approved (Ex iaD) ■ ■ ATEX approved (Dust Ex)

162 TEMPERATURE MEASUREMENT TEMPER ATURE TR ANSMITTERS THERMOCONT TT THERMOCONT TT field devices incorporating Pt100 sensor are 2-wire temperature transmitter with 4 – 20 mA analogue output or transmitter/indicator if equipped with plug in display. Intrinsically safe version of each model is available in ordinary or flame-proof housing. The measured temperature can also be transmitted by HART® communication. The THERMOCONT TT temperature transmitters are suitable for temperature measurement of liquids in tanks and pipes and free flowing or powdered solids, but also applicable for gases. Wall mounted versions are available for ambient temperature measurements.

The PFA coated stainless steel probe makes measurement of very aggressive materials also possible. The reinforced temperature probe version is an ideal solution for meeting the requirements of the oil-, gas- and heavy chemical industries, but also a good choice when robustness of the probe is advantageous. As special version of the unit a remote transmitter is also available which can be connected to a standard Pt100 sensor through a simple 4-wire cable.

166 TEMPERATURE MEASUREMENT THERMOWELLS, TEMPER ATURE SENSORS THERMOCONT T The wide range of THERMOCONT temperature sensors is able to cover almost all demands in the area of industrial temperature measurement. The numerous versions and multiple kinds of applicable probes make THERMOCONT suitable choice for all industries. PFA coated probe versions with teflon inserted steel flange are applicable for chemical and petro- chemical applications where aggressive mediums could damage steel probes. The vibration-resistant versions are suitable for special applications where the measurement is exposed to high vibrations.

173 SENSORS SENSORS Another important non-electrical quantity of the industrial process automation is pressure. The NIPRESS D mini compact type gauge / absolute pressure transmitters offer wide selection of models and provide possibility to complete almost all relative or absolute pressure measurement tasks requiring different accuracy. Their design, high overload capability and the possibility to install the units in any physical position allows for a wide range of industrial applications. Non-contact proximity switches are also very popular devices of the industrial process automation.

The MICROSONAR ultrasonic proximity sensors provides ideal choice for simple applications where the use of higher performance units such as EasyTREK or EchoTREK is not needed. The MICROSONAR proximity sensors use non-contact ultrasonic principles to detect and measure the position of an object. They act as proximity switches, or transmit the measurement of the distance from sensor face to the target.

175 SENSORS ULTR ASONIC PROXIMITY SENSORS AND TR ANSMITTERS MICROSONAR MICROSONAR proximity sensors use non-contact ultrasonic principles to detect and measure the position of an object.

They act as proximity switches, or transmit the measurement of the distance from sensor face to the target. For transmitter models the output signal is either 4 – 20 mA or 0 – 10 V, which can be assigned to any part of the nominal range. Switching points of the proximity switch option can be set to any point within the range.

179 PRESSURE PRESSURE SWITCHES NIPRESS DK NIPRESS pressure switches are used in hydraulic and pneumatic applications for monitoring and controlling the pressure via switching outputs. Due to the simple handling as well as the variety of software features (switching points and hysteresis freely configurable, delay function, storing min/ max-value, scalable display and analogue output signal, etc.) the pressure switches with display are especially suitable for general plant and machine construction and for applying in the processing industry.

DK-100 series is an electronic pressure switch with silicon sensor for pneumatics and vacuum applications. DK-200 series with ceramic sensor is excellent for measuring, control and process technology applications in the area of hydraulics and mechanical engineering. DK-100 and DK-200 series pressure switches can be configured and programmed with one of the two optionally available configuration kits (CIS Set USB kit for PC or P6 programming device). DK-300 series is an electronic pressure switch with stainless steel internal or flush sensor. This device is a successful combination of an intelligent pressure switch and a digital display.

DK-400 series is an electronic pressure switch with welded stainless steel flush sensor. This device is a successful combination of an intelligent pressure switch and a digital display. This makes it suitable for numerous applications in various industrial sectors and is also ideal for viscous or pasty media.

DK-500 series is an electronic pressure switch with welded stainless steel sensor. This device is a successful combination of an intelligent pressure switch and a digital display. This makes it suitable for numerous applications in various industrial sectors. It comes with a rotatable display and with PNP contact outputs. DK-600 series is an electronic pressure switch with ceramic sensor. This device is a successful combination of an intelligent pressure switch and a digital display. This makes it suitable for numerous applications in various industrial sectors. Due to the flush diaphragm, it is suitable for the usage in viscous, pasty or highly contaminated media.

The robust rotatable stainless steel housing is designed for using under rough conditions and in hard operating environment. The standard version of the device comes with PNP contact.

DK-700 series is an electronic pressure switch with welded stainless steel flush sensor. This device is a successful combination of an intelligent pressure switch and a digital display. This pressure switch has been developed for process industry, especially for food industry and pharmacy. It comes with a rotatable display and with PNP contact outputs. DK-800 series is an intelligent pressure switch and a digital display with ceramic sensor designed for using in general industrial applications. Its flush diaphragm version is suitable for the usage in viscous, pasty or highly contaminated media.

The standard version comes with PNP contact outputs and a rotatable display.

189 PRESSURE PRESSURE TR ANSMITTERS NIPRESS D NIPRESS pressure transmitters with different sensor technologies combined with various housing materials can be used for almost all relative or absolute fluid or gas pressure measurement tasks requiring different accuracy. Their design, high overload capability and the possibility to install the units in any physical position makes them suitable for a wide range of industrial applications. D-200 series with ceramic internal sensor is suitable for the measurement of aggressive gases, steam and fluids, but not recommended for materials tending to sedimentation, crystallisation or stiffening.

It’s not suggested for dynamic overpressure either. The transmitters measure overpressure and can be used in 2-wire system.

D-300 series with piezoresistive stainless steel internal sensor is suitable for static or dynamic stress, but not recommended for materials tending to sedimentation, crystallisation or stiffening. Absolute pressure measurement is feasible at ranges over 0.1 bar. D-400 series with piezoresistive or capacitive stainless steel flush sensor is especially suitable for contaminated liquids and in tanks for measuring bottom pressure. The high temperature versions of the family can be used for media temperature up to 150 °C or up to 300 °C. Absolute pressure measurement is feasible at ranges over 0.1 bar.

The standard pressure transmitting liquid of the sensors is silicone oil, but the units can also be ordered with a pressure transferring liquid suitable for food industry.

D-500 series with ceramic flush sensor is especially suitable for the measurement of aggressive, contaminated, pasty media, and for low pressure oxygen applications. D-600 series screw-in pressure transmitters with ceramic flush sensor are suitable for the pressure measurement of fluids, oils, and gases. Due to their flush sensor, they are ideal for the measurement of viscose and polluted media. For using in aggressive media we recommend PVDF process connection. D-700 series screw-in pressure transmitters with ceramic flush sensor can be used for low pressure measurements. Due to their flush sensor, they are ideal for the measurement of viscose and pasty media.

With PVDF housing and process connection they are suitable for using in aggressive media. For special applications they can be ordered with Teflon coating. D-800 series with stainless steel flush sensor consist of robust screw-in pressure transmitters with excellent performance. Its modular construction provides high flexibility to the user.

D-900 series with ceramic internal sensor was especially designed for applications in plant and machine engineering as well as laboratory techniques. The pressure transmitter is suitable for measuring small system pressure, however due to its optional AI2O3 99.9% sensor it also offers high temperature, overpressure, and media resistance. D-A00 series with stainless steel internal or flush sensor is ideal for the process industry as well as for pharmaceutical usage. It can be used for measuring the pressure of gases and steam up to 600 bar. The pressure transmitter provides HART® communication, and is available with several process connections and housing materials (internal or external threads, flanges).

It’s high temperature version with cooling elements is applicable up to 300°C.

D-B00 series with ceramic flush sensor has a really high overpressure resistance thanks to its AI2O3 99.9% sensor. It is ideal for the measurement of gases, steam, and fluids. The pressure transmitter is equipped with HART® communication, and available with several process connections and housing materials. D-C00 series with stainless steel internal sensor can be used for the measurement of extremely high pressure (up to 2000 bar), which makes it suitable for hydraulic applications. The base element of the device is a thinfilm sensor, that is welded with the pressure port. The pressure transmitter offers high reliability, and easy handling.

203 PRESSURE DIFFERENTIAL PRESSURE TR ANSMITTERS NIPRESS DD NIPRESS differential pressure transmitters are available with different sensor technologies combined with compact stainless steel or aluminium die-cast cases or plastic housings. The wide variety of the product range makes possible to measure the pressure of numerous fluids and gases, to monitor ventilation ducts, filters and fans in HVAC areas as well as to measure level in closed pressurized tanks. DD-100 series with piezoresistive silicon sensor can be used in 2- or 3- wire system measuring the pressure difference of gases and compressed air.

It is optionally available with a 5-digit display. One of its main features is that it is also available for quite low pressure ranges. DD-200 series with piezoresistive stainless steel (optionally Hastelloy® C-276) sensor is working in 2 wire system with HART® communication.

The differential pressure transmitter’s main application area is the process industry, and can be used exceedingly in closed, pressurized tanks. It is optionally available with a display and operating module. DD-300 series with piezoresistive stainless steel sensor can be pressurized on both sides with fluids or gases. The differential pressure transmitter measures the difference between the positive and negative side. Due to its compact size, it can be installed also in tight spaces. DD-400 series with 2 piezoresistive stainless steel sensors and with rotatable display and process connection can be used for measurement of pressure difference between gases and fluids.

DD-500 series with piezoresistive silicon sensor is working in 2- wire system with HART® communication.

213 SYSTEM COMPONENTS MULTICHANNEL PROCESS CONTROLLER MultiCONT The MultiCONT unit is a universal interface between NIVELCO’s HART® -capable intelligent level transmitters and the other elements of the process control system like the PC-s , PLC-s, displays and the actuators. Besides its role as an interface, the MultiCONT ensures the powering of the 2-wire transmitters while being capable of complex control tasks. The MultiCONT unit supports communication with a maximum of 15 standard or 4 Ex ia certified NIVELCO’s HART® -capable 2- and / or 4-wire transmitters.

If MultiCONT is used with NIVELCO’s MicroTREK or PiloTREK microwave level transmitters the maximum number of transmitters in a loop should not exceed 6 pcs. for normal transmitters and 2 pcs. for Exversiontransmitters.IfasystemcontainsmoretransmittersthanoneMultiCONTcanh andle,furtherMultiCONTunitscanbewiredinseriesviaanRS485line.Remoteprogrammi ng of the transmitters and downloading of the parameters and measured data is possible using the MultiCONT. The various outputs such as 4 – 20 mA, relays and digital outputs can be controlledusingmeasuredvaluesandnewvaluescalculatedfromthemeasuredvalues.Th einternalcurrentoutputs(max.2pcs.)oftheMultiCONTcantransferandevenmodifyinf ormation supplied by the transmitters.

214 SYSTEM COMPONENTS MULTICHANNEL PROCESS CONTROLLER MultiCONT SPECIAL FEATURES (1) Need of IEC is to be specified with order Trend logging (optional) Onboard logging capable versions of MultiCONT are able to store measurement values and three additional parameters of the connected transmitters in a measurement system into the internal FLASH memory or an SD memory card. The two modes, time-controlled and event-controlled logging modes can be used. Monitoring the average, minimum and maximum value or highest values of the flow can be used only for NIVELCO manufactured transmitters used in flow-metering mode.

Content of the internal memory is retrievable through USB port, within the capacity of 65 000 entries. Maximum capacity of the applicable SD card is 2 GB.

NIVISION (optional) Process Visualisation Software RS485 capable versions of MultiCONT are able to communicate with NIVELCO’s NIVISION process visualization software to indicate parameters of a process control system graphically on a process controller PC. The process, the measured values or any further processed values can be visualized also in tabular form with NIVISION. The NIVISION performs data logging, trend monitoring, database handling and various other tasks in addition to a basic visualization. The software is sold as a custom-tailored product.

There is a Master-Slave relation between MultiCONT and the connected transmitters. Through the MultiCONT the transmitters can be programmed or their parameters checked and modified. Reading the process values of the transmitters is easy to do by the MultiCONT. In case of using MultiCONT with multiple transmitters, the units should be addressed with numbers (Short address) differing from zero. Using two transmitters with the same Short address is not possible. MultiCONT can handle a number of max. 15 transmitters with HART® communication. When using 2-wire transmitters, the cur- rent output of the transmitters will be limited to 4 mA, because of the capacity of the MultiCONT’s power supply, which is rated at 60 mA with standard transmitters.

The Universal Interface Modules can be a widely used as a part of the following applications: Expanding MultiCONT multichannel process controller with relays or current outputs Peripheral unit of PLC process control systems Peripheral unit of PC automated process control systems The UNICONT PJK-100 universal interface modules provide essential solution if the number of relays or current outputs of the MultiCONT is not enough in a system. The device can be used also as a peripheral unit for PLC or PC controlled process control systems communicating via MODBUS protocol. The sum of relays in the UNICONT PJK-100 extension modules and the MultiCONT must not exceed 64, and the sum of analogue outputs (4 – 20 mA) must not exceed 16.

There is a special module with both relay and current output in the variety of the UNICONT PJK-100 series. The maximal number of these modules may be 32. The programming of the UNICONT PJK modules can be done via HART or MODBUS protocol with the help of the central unit of the communication network, which can be a process control computer or a MultiCONT device. The switches in the front panel of the module is only for setting the address. PJK-102

The input 4 – 20 mA signals can be transferred from passive or active outputs of 2- or 4-wire transmitters. The value of the input signal will be compared in the unit with the set (taught) value and the state of the galvanically isolated relay changes in accordance with the comparison mode programmed.

The double throw output relay can be programmed for the following functions: Limit switch (high or low fail safe) ON-OFF control with selectable switching difference Monitoring of discontinuity or short-circuit of the cable Window comparison operation mode with energised or de-energised relay state The UNICONT PKK-312-8 Ex is a special version, designed to operate with NIVELCO's Ex rated, DC powered 2-wire NIVOSWITCH vibrating fork level switches, as an intrinsically safe power supply and amplifier unit. Without doing any programming the galvanic isolated limit switch is able to perform relay switching signal based on the monitoring of the vibrating fork's output current changes between the freely vibrating and the immersed states.

The devices are applicable not only for NIVELCO transmitters, but for all transmitters which use standard 4 – 20 mA output. The UNICONT PDF devices are digital, 2-wire passive / 3-wire active, field process indicators suitable for indication of temperature, pressure, level, etc. values with 6 digit SAP-202 LCD display. Explosion proof versions are available for hazardous environments. The HART® capable UNICONT PDF 3-wire process indicators require additional power supply. Besides displaying the loop current or the process values, these units convert input current to HART® signals and so enable devices that have analogue outputs only to be integrated into HART® multidrop systems.

224 SYSTEM COMPONENTS The UNICONT PM-400 and -500 series universal controllers are 1/16 DIN (48x48 mm) process controllers with relay and analogue outputs or PID algorithm supporting versatile functions. The universal analogue PID-controllers can be used with a Pt100 resistance thermometer and with different thermocouples for temperature measurement, control as well as processing the signals of transmitters with 4 – 20 mA and 0 – 5 V DC or 0 – 10 V DC output. The output signal of the controller can be a relay, continuous 4 – 20 mA process current signal or SSR-driver. Additional alarm relay provides for limit monitoring.

The unit is microprocessor based, has an auto-tuning software, automatic and its PID controller is able to find the optimum of the P-I-D constants. PMM-500 series are able to communicate on RS485 line and also able to provide power supply for transmitters. The large bi-coloured display provides easy reading even from far distance.

An IP68 protected ultrasonic level transmitter performs continuous level measurement and delivers 4 – 20 mA level data to the UNICONT PSW unit featuring a user programmable controller. This controller featuring relay output incorporated in the UNICONT PSW directly controls the single phase pump acting in the sump, well, etc. The current controlled switch operates in differential level switch mode as default, the low and high levels are programmable. By the help of an optional programmable timer automatic pump cycling can be performed to prevent jamming of the pump in case of long idle periods.

This function is useful in case of infrequent usage or low water consumption. The optional NIVOFLOAT NLP type float level switches may be used for additional dry-run or overfill protection if safety is a priority. The system can be turned on or off by a single-pole Miniature Circuit Breaker or a Motor Protection Switch.

230 SYSTEM COMPONENTS UNIVERSAL COMMUNICATION INTERFACE MODULES UNICOMM GENERAL DESCRIPTION The UNICOMM interface modules are able to establish communication line between HART® -capable field devices and process controller computer. The communication can be done via USB or RS485 line, and also via Bluetooth. The UNICOMM HART® modems are applicable not only for NIVELCO transmitters, but for all HART® -capable transmitters which use standard HART® communication. The device is galvanically isolated from both (USB and HART® ) sides, when it is used as a HART® -USB modem, connected into the USB input of a PC, the modem does not need external power supply.

The UNICOMM SAK-305 modules can be connected into a suitable device with RS485 interface input, used as a HART® -RS485 modem. The communication protocol is HART® on the RS485 line. In this case the device needs external power supply. The Ex versions can be connected to transmitters placed in hazardous areas.

SOFTWARE 232 PROCESS VISUALIZATION SOFTWARE NIVISION NIVIS01 1 years NIVISION process visualisation, measurement logging and database management software for MultiCONT and all NIVELCO transmitters with installation on-the-spot Price on request: NIVISION licence fee APPLICATION DEVELOPMENT (For any process controlling task in accordance to order demands, in engineering work day) GENERAL DESCRIPTION MAIN FEATURES APPLICATIONS NIVISION is a VISION X9 based process visualization software which uses the XSDL (Extensible Structure Declaration Language) programming and configuring language. NIVISION can visualize a process control system built with NIVELCO instruments on a PC.

The instruments can either be intelligent transmitters with analogue output or digital communication, or different switches based on different measuring principles. The tank-farm layout with tanks, instrumentation and other process devices can easily be visualized. NIVISION offers a wide range of visualization elements of the measured and limit values, time based trends, databases and logs. Exporting and importing different database types is also a basic feature of the software. A clear and transparent overview of all processes involved in an application makes stock and material management a simple task with a well constructed NIVISION project.

Another great feature of the software is that a NIVISION project can be visualized on a remote computer (with no NIVISION installed) through a local area network (LAN) or the Internet using an ordinary internet browser. It is a perfect solution for small and medium sized process control systems where setting up a SCADA system is too expensive.

The finalized project can be executed by the end-user using the NIVISION runtime system. The basic element of the software is the “UNIT” which contains the applied instrument (with graphical representation), the instrument’s variables, event handling, communication and data display. With the help of these units a complete process instrumentation system can be set up for visualization.

233 TERMS AND CONDITIONS MAIN INFORMATION This Product Catalogue is valid from the 15th of January 2018 and on that date all prior Product Catalogues loose validity.

NIVELCO reserves the right to make any changes. The illustrations of the products in this Product Catalogue are only informative. A final check of specifications in the data sheets, user’s and programming manuals is recommended. DELIVERY Concerning delivery time models are assigned to four different groups: Normal delivery: ■ Standard products are usually man- ufactured within three weeks and shipped on the fourth week.* ■ For non-standard products marked with „6”, a shipping delay of up to 6 weeks is to be counted with.

Fast delivery: ■ Units ordered under the NIVEX service are shipped within 5 working days from receiving the order if the order is accepted. Before ordering products with the NIVEX marking (in capital letters), availability of the relevant products in the required quantity has to be checked and confirmed by the Order Desk of NIVELCO. The NIVEX service is surcharged by 5% of list price. ■ NIV24 service is available for models indicated in tables at the bottom right of the relevant price sheets. Products ordered with the remark NIV24 will be shipped on the next day of the order for a maximum of 5 pieces.

The NIV24 service is surcharged by 5% of list price.

WARRANTY NIVELCO undertakes a guarantee of 1 to 5 years for its products.** The warranty periods for each product group (1 year – 5 years) are indicated on the order code sheets of the respective products. ORDER CODES AND ARTICLE NUMBERS Allordercodesforcompleteinstrumentshave7characters(withsomeexceptionsforspe cialconstructionsthathave7characters+“X…”). Order codes can be found in this Product Catalogue, coloured brochures, User’s and Programming Manuals and in other marketing documents on our website. Article numbers can be found in our Order Confirmations, Offers and Invoices. Article numbers have 8 characters and they are constructed as the order code + “M” (in some cases this last character may be different).

This distinction between order code and article number has relevance only to NIVELCO’s internal administration but not to the technical content. e.g.

order code: SGP-380-4 article number: SGP3804M INSPECTION AND CLEANING CHARGES A 25.00 EUR inspection fee is applied when a returned unit is found faultless. We charge 25.00 EUR for cleaning a unit that is returned to us dirty and/or without a signed properly filled Defective Equipment Handling Form. * The indicated delivery time varies depending on the quantity ordered. ** Except for analytical sensors!

PRESSURE SENSOR FAMILY FROM NIVELCO ■ ■ PRESSURE SWITCHES ■ ■ PRESSURE TRANSMITTERS ■ ■ DIFFERENTIAL PRESSURE TRANSMITTERS In the world of industrial metrology, monitoring and controlling the pressure of fluids and gases and the processing of the measured results are high priorities.

ULTRASONIC LEVEL TRANSMITTER FOR LIQUIDS SP-500 The newest generation EasyTREK SP-500 series level transmitters are based on NIVELCO’s 35 years of experience with ultrasonic level measurement. The IP68 rated units have their transducer and processing electronics incorporated in one single housing. The new EasyTREK transmitters utilize HART® 7 communication so they can be used in multidrop systems connected to MultiCONT process controller/display, or to a PC with the help of the UNICOMM HART® -USB modem or similar. The transmitters can be remotely programmed also with Handheld Field Communicator, and can be connected wirelessly to a PC with the SAT-504 Bluetooth® HART® modem.